126722591051 has 16 divisors (see below), whose sum is σ = 149834630400. Its totient is φ = 104863495968.

The previous prime is 126722591011. The next prime is 126722591057. The reversal of 126722591051 is 150195227621.

It is a de Polignac number, because none of the positive numbers 2^k-126722591051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126722591057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2561516 + ... + 2610518.

It is an arithmetic number, because the mean of its divisors is an integer number (9364664400).

Almost surely, 2^126722591051 is an apocalyptic number.

126722591051 is a deficient number, since it is larger than the sum of its proper divisors (23112039349).

126722591051 is a wasteful number, since it uses less digits than its factorization.

126722591051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61778.

The product of its (nonzero) digits is 75600, while the sum is 41.

The spelling of 126722591051 in words is "one hundred twenty-six billion, seven hundred twenty-two million, five hundred ninety-one thousand, fifty-one".